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Journal of Wood Science

, Volume 64, Issue 4, pp 451–457 | Cite as

Stereo-preference in the degradation of the erythro and threo isomers of β-O-4-type lignin model compounds in oxidation processes III: in the reaction with chlorine- and manganese-based oxidants

  • Pattaraporn Posoknistakul
  • Satoru Akiho
  • Takuya Akiyama
  • Tomoya YokoyamaEmail author
  • Yuji Matsumoto
Note
  • 158 Downloads

Abstract

We examined which isomer, the erythro or threo, of a non-phenolic β-O-4-type lignin model compound is stereo-preferentially oxidized in hypochlorite, chlorite, manganese dioxide, or permanganate systems. No clear stereo-preference was observed in the hypochlorite or chlorite systems at alkaline, neutral, or acidic pH except for a slight threo stereo-preference that appeared after the step-wise addition of the oxidizing reagent had been terminated in the neutral or acidic chlorite systems. A clear threo stereo-preference was observed in the manganese dioxide or permanganate systems.

Keywords

Chlorine dioxide Chlorite Hypochlorite Manganese dioxide Permanganate 

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Copyright information

© The Japan Wood Research Society 2018

Authors and Affiliations

  1. 1.Laboratory of Wood Chemistry, Department of Biomaterial Sciences, Graduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
  2. 2.Department of Chemical Engineering, Faculty of EngineeringMahidol UniversityNakhon PathomThailand
  3. 3.Tsukuba Research CenterKuraray Co., Ltd.TsukubaJapan

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